Heavy Chair Spring (Red) - overall length is 18.628”with an initial tension of 14.75 lbs (load required to open the coils without extension) and a spring rate of 3.888 lb/inch (load required to extend spring every inch after the initial tension is applied).
Light Chair Spring (Blue) - overall length is 17.750”with an initial tension of 6.688 lbs (load required to open the coils without extension) and a spring rate of 1.157 lb/inch (load required to extend spring every inch after the initial tension is applied).
2 Years: All springs
For our full equipment warranty, please see our
warranty terms and conditions.